Destructive waves erode the coastline in a number of ways. identify the term that describes when bits of rock and sand in waves grind down cliff surfaces like sandpaper. a) abrasion b) solution c) attrition d) hydraulic action

Which best describes how the common cold spreads in the human body? a bacteria burst out of normal cells killing them b viruses replicate inside respiratory cells c bacteria inject dna into normal cells d viruses insert dna into bacteria

The following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol

Which of the following is an effect of the uneven heating of the earth by the sun? a sea breeze a land breeze a convection current all of the above